Search a number
-
+
18630808744074 = 2317317380713649
BaseRepresentation
bin1000011110001110100101…
…01111001011000010001010
32102222002101002120001212020
410033013102233023002022
54420221344014302244
6103342513025425310
73632013544253052
oct417072257130212
972862332501766
1018630808744074
115a3331091720a
12210a93819b236
13a51b54496b57
14485a43660562
1522496b852d19
hex10f1d2bcb08a

18630808744074 has 64 divisors (see below), whose sum is σ = 41284063411200. Its totient is φ = 5578927349760.

The previous prime is 18630808744063. The next prime is 18630808744127. The reversal of 18630808744074 is 47044780803681.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18630808743999 and 18630808744017.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40125999 + ... + 40587650.

It is an arithmetic number, because the mean of its divisors is an integer number (645063490800).

Almost surely, 218630808744074 is an apocalyptic number.

18630808744074 is an abundant number, since it is smaller than the sum of its proper divisors (22653254667126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18630808744074 is a wasteful number, since it uses less digits than its factorization.

18630808744074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80713775.

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 18630808744074 in words is "eighteen trillion, six hundred thirty billion, eight hundred eight million, seven hundred forty-four thousand, seventy-four".

Divisors: 1 2 3 6 17 31 34 51 62 73 93 102 146 186 219 438 527 1054 1241 1581 2263 2482 3162 3723 4526 6789 7446 13578 38471 76942 115413 230826 80713649 161427298 242140947 484281894 1372132033 2502123119 2744264066 4116396099 5004246238 5892096377 7506369357 8232792198 11784192754 15012738714 17676289131 35352578262 42536093023 85072186046 100165638409 127608279069 182654987687 200331276818 255216558138 300496915227 365309975374 547964963061 600993830454 1095929926122 3105134790679 6210269581358 9315404372037 18630808744074